Electrode assembly and methods for manufacturing electrode assembly and battery

Abstract

The present invention relates to an electrode assembly, a battery including the electrode assembly, and a method of manufacturing the same. A method of manufacturing an electrode assembly according to an embodiment of the present invention includes: a step for providing a separator; a step for forming a first conductive network layer comprising at least more than one first metal fibers on a first peripheral surface of the separator; and a step for providing a first particle composition comprising the electrically active material of the first polarity in the pores of the first conductive network layer.

What is claimed is: 
     
         1 . An electrode assembly comprising,
 a separator;   a first conductive network layer comprising at least more than one first metal fibers on a first peripheral surface of the separator; and   electrically active materials of the first polarity impregnated into the pores of the first conductive network layer.   
     
     
         2 . The electrode assembly according to the claim  22 , wherein the separator includes at least any one selected from a polyethylene film, a polypropylene film, or a film type separator in which pores are formed in a composite structure thereof, a ceramic coated separator in which ceramic particles are coated on the film type separator, and a fiber type separator having nonwoven fabric or woven structure by using polymer fibers. 
     
     
         3 . The electrode assembly according to the claim  23 , wherein the fiber type separator includes at least any one selected from polyethylene fiber, polypropylene fiber, polyethylene terephthalate fiber, cellulose fiber, Kevlar fiber, nylon fiber and polyphenylene sulfide fiber. 
     
     
         4 . The electrode assembly according to the claim  23 , wherein a diameter of the polymer fibers may be 1 nm or more and 100 m or less. 
     
     
         5 . The electrode assembly according to the claim  22 , wherein the separator may have a thickness between 10 μm or more and 100 μm or less, and the porosity may be 30% or more and 95% or less. 
     
     
         6 . The electrode assembly according to the claim  22 , wherein a surface of the first conductive network layer opposite to the surface in contact with the first peripheral surface includes an exposed surface for bonding with an adjacent layer. 
     
     
         7 . The electrode assembly according to the claim  27 , wherein the first particle composition is provided only into the inner side of the first conductive network layer so that an end of a segment or a portion of the segment for forming the first metal fibers may be exposed on the exposed surface. 
     
     
         8 . The electrode assembly according to the claim  22 , further comprising a second conductive network layer comprising at least more than one second metal fibers formed on a second peripheral surface opposite to the first peripheral surface of the separator. 
     
     
         9 . The electrode assembly according to the claim  29 , further comprising a second particle composition comprising electrically active materials of a second polarity opposite to the first polarity in the pores of the second conductive network layer. 
     
     
         10 . The electrode assembly according to the claim  22 , wherein the first conductive network layer further includes a fiber type binder in addition to the first metal fibers. 
     
     
         11 . The electrode assembly according to the claim  31 , wherein the fiber type binder includes at least any one selected from the group consisting of polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polypropylene terephthalate (PPT), nylon, polyethylene naphthalate (PEN), polyether sulfone (PES), polyetheretherketone (PEEK), polyphenylene sulfide (PPS), polyvinylidene fluoride (PVDF), and copolymers thereof, or mixtures thereof.